Anto...
Here is an off-the-wall suggestion I wouldn't offer except I saw so many of these in use by happy cycle-tourists in Luxembourg and along the Austrian and German stretches of the Danube and by an entire platoon of hiking teenaged Belgian Scouts in Nancy, France: The Quechua line of instant ("2-Second") tents.
They pitch *themselves* literally within two seconds, pitch as all-in one, and have lots of room inside (a Bavarian friend shares one with his wife, and he measures 196cm tall). There are lighter-weight versions at least a kilogram lighter than your GT Nallo Spear, and they seem to tick most of your boxes. They do draw a crowd when "pitching", but if onlookers blink they'll miss the show. I have to admit to being a bit envious at how quickly they went up in a rainstorm, staying completely dry inside.
The poles are flexible to an astonishing degree and I feared for their occupants in high winds, but everyone seemed to come through unscathed after the storms I witnessed. Unstaked and unoccupied, they can tumble for hundreds of meters and will float...for awhile...as unlicensed vessels on major European rivers. The main problem seems to be their stowed size and shape; they look like a large disc (think: Folded automobile windscreen sunshield). The best approach seems to be securing them to a bike horizontally using a "spider" type bungee net with multiple hooks atop the rear rack/panniers so they don't catch the wind. Stowed thusly, they didn't seem to affect handling adversely. For an example, see:
https://www.flickr.com/photos/jesgf/3594414511/All in all, I was pleasantly surprised at how well these tents worked and how happy the owners were, some having used theirs for multi-year segments of the Eurovelo routes, as much as six weeks at a time. A number of Dutch Weraldfietser ("World Cyclist") forum members use them with great satisfaction. Cost is fairly reasonable at chains like Decathlon, though the more expensive, bike-suitable versions are available from other vendors.
If you're looking for an all-in one, instant pitch with plenty of interior volume and don't mind packing a flat disc atop your rear bags, one might well do at a far more reasonable weight than your present tent at at a cost reasonable enough to leave more money for meet registration and the ferry. They fold up almost as quickly; see:
http://www.quechua.com/en-GB/notice/player/24/produits-mode-d-emploi/25/zelt-2-seconds/204/1-second-repliage.html 'Wouldn't be my choice, but there's as many variations in personal lodging preferences as there are in bicycles. After 31 years of happiness with a 1kg hooped Gore-Tex 1-man bivy, I've had great success with my closeout priced USD$60 Coleman Exponent Dakota 1, which has held up nicely for several years now and stayed dry in torrential rains and high winds, provided it was pitched correctly and tautly. I bought three at the price so I'd have some good-cheap tents in reserve:
https://www.youtube.com/watch?v=T3312cVa6HUHere's some links and videos for the "instant" Quechuas:
• Pitches and takedowns:
http://www.quechua.com/en-GB/notice/24/produits-mode-d-emploi/25/zelt-2-seconds.html• Factory site showing broad model range:
http://store.quechua.com/en-GB/sport-camping-camping-tents-camping-1-4pers/2-seconds-tentQuechua also make a lightweight 2-person tent of more conventional design I saw that pitches quickly:
https://www.youtube.com/watch?v=mICvbe7JRF8All the best,
Dan. (...who also saw a tent colored hot-pink and its happy owner, so figures personal preference may be the most important "feature" in personal lodging)
